Role of parity violating Hamiltonian in-non-relativistic quark model for non-leptonic hyperon weak transitions

(1996) Role of parity violating Hamiltonian in-non-relativistic quark model for non-leptonic hyperon weak transitions. Masters thesis, King Fahd University of Petroleum and Minerals.

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Arabic Abstract

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English Abstract

A non-relativistic quark model has been used in the calculation of the K*-pole contributions to s-wave amplitudes for non-leptonic decays of hyperons, which involve K*⁰- π⁰ and K*⁻- π⁻ weak transitions. Such corrections were thought to be one way of removing the long standing discrepancy between s- and p- wave amplitudes obtained in the current-algebra approach to non-leptonic decays of hyperons. Although the calculation of the K* contribution on the quark model is found to be negligible, it gives the right order of magnitude of small observed deviations form the ΔI=1/2 rule. A comparison of the observed deviation from ΔI=1/2 rule for s-wave hyperon decay amplitudes with estimated ones is discussed.

Item Type: Thesis (Masters)
Subjects: Physics
Divisions: College Of Sciences > Physics Dept
Committee Advisor: Riazuddin, -
Committee Members: Mavromatis, H. A. and Zettili, Noureddine
Depositing User: Mr. Admin Admin
Date Deposited: 22 Jun 2008 16:45
Last Modified: 01 Nov 2019 16:49
URI: http://eprints.kfupm.edu.sa/id/eprint/9622